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The ETTO Principle: Efficiency-Thoroughness Trade-Off
ISBN-13:
9781317033615
Veröffentl:
2017
Seiten:
162
Autor:
Erik Hollnagel
eBook Typ:
PDF
eBook Format:
EPUB
Kopierschutz:
2 - DRM Adobe
Sprache:
Englisch
Beschreibung:
Accident investigation and risk assessment have for decades focused on the human factor, particularly 'human error'. This bias towards performance failures leads to a neglect of normal performance. It assumes that failures and successes have different origins so there is little to be gained from studying them together. Erik Hollnagel believes this assumption is false and that safety cannot be attained only by eliminating risks and failures. The alternative is to understand why things go right and to amplify that. The ETTO Principle looks at the common trait of people at work to adjust what they do to match the conditions. It proposes that this efficiency-thoroughness trade-off (ETTO) is normal. While in some cases the adjustments may lead to adverse outcomes, these are due to the same processes that produce successes.
Contents: Prologue; The need to understand why things go wrong; From rationality to ETTOing; Explaining human irrationality; Efficiency-thoroughness trade-off in practice; The usefulness of performance variability; ETTOs of the past; ETTOs of the future; Epilogue; Index.
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